GB1136016A - Production of sols - Google Patents

Production of sols

Info

Publication number
GB1136016A
GB1136016A GB1756766A GB1756766A GB1136016A GB 1136016 A GB1136016 A GB 1136016A GB 1756766 A GB1756766 A GB 1756766A GB 1756766 A GB1756766 A GB 1756766A GB 1136016 A GB1136016 A GB 1136016A
Authority
GB
United Kingdom
Prior art keywords
weight
silica
anode
liquid medium
alcohol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1756766A
Inventor
Henry Thomas Joseph Chilton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to GB1756766A priority Critical patent/GB1136016A/en
Priority to NL6705143A priority patent/NL149766B/en
Priority to DE19671667609 priority patent/DE1667609C3/en
Priority to SE527267A priority patent/SE323063B/xx
Priority to ES339383A priority patent/ES339383A1/en
Priority to BE697248D priority patent/BE697248A/xx
Priority to FR103349A priority patent/FR1519442A/en
Publication of GB1136016A publication Critical patent/GB1136016A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/145—Preparation of hydroorganosols, organosols or dispersions in an organic medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

1,136,016. Silica sols. MONSANTO CHEMICALS Ltd. 28 March, 1967 [21 April, 1966], No. 17567/66. Heading C1A. [Also in Division C7] A sol contains from 1 to 30% by weight of the total composition of collidal silica in a dispersion medium comprising a monohydric alcohol having from 1 to 3 carbon atoms per molecule, up to 10% by weight of the alcohol of water and from 0À1 to 10% by weight of the total composition of hydrochloric acid (expressed as 100% HC1) or from 0À1 to 15% by weight of the total composition of sulphuric acid (expressed as 100% H 2 SO 4 ). The novel colloidal dispersions of silica that are of most value in practice contain from 4 to 30% by weight of silica, and not more than 5% by weight of HC1 or H 2 SO 4 , and preferably from 0À25 to 5% by weight of the alcohol of water Compositions described in examples 1 to 9 are claimed per se. The silica sols are produced by passing an electric current through a liquid medium comprising the above composition using a silicon anode in contact with the liquid medium. The alcohol is preferably ethanol or methanol and the anode is substantially pure silicon or ferrosilicon containing from 60 to 99% by weight of silicon. The process is most conveniently carried out under reflux at the normal boiling point of the liquid medium, and preferably includes a preliminary period of "anode activation" during which an electric current is passed through the liquid medium with the electrode that is to serve as the anode in the production of the silica sol as the cathode.
GB1756766A 1966-04-21 1966-04-21 Production of sols Expired GB1136016A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1756766A GB1136016A (en) 1966-04-21 1966-04-21 Production of sols
NL6705143A NL149766B (en) 1966-04-21 1967-04-12 PROCESS FOR PREPARING SILICON DIOXYDESOLS BY ELECTROLYSIS.
DE19671667609 DE1667609C3 (en) 1966-04-21 1967-04-14 Process for the production of a SiO deep 2 sol in an alcoholic dispersant
SE527267A SE323063B (en) 1966-04-21 1967-04-14
ES339383A ES339383A1 (en) 1966-04-21 1967-04-15 Production of sols
BE697248D BE697248A (en) 1966-04-21 1967-04-19
FR103349A FR1519442A (en) 1966-04-21 1967-04-19 Silica soils and gels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1756766A GB1136016A (en) 1966-04-21 1966-04-21 Production of sols

Publications (1)

Publication Number Publication Date
GB1136016A true GB1136016A (en) 1968-12-11

Family

ID=10097445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1756766A Expired GB1136016A (en) 1966-04-21 1966-04-21 Production of sols

Country Status (6)

Country Link
BE (1) BE697248A (en)
DE (1) DE1667609C3 (en)
ES (1) ES339383A1 (en)
GB (1) GB1136016A (en)
NL (1) NL149766B (en)
SE (1) SE323063B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709801A (en) * 1969-02-11 1973-01-09 Monsanto Chemicals Production of alkyl silicates
US3730857A (en) * 1970-05-05 1973-05-01 Monsanto Chemicals Production of alkoxides
US5885485A (en) * 1996-06-10 1999-03-23 Bayer Aktiengesellschaft Process for producing low-salt silica sol dispersions in low-boiling alcohols

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709801A (en) * 1969-02-11 1973-01-09 Monsanto Chemicals Production of alkyl silicates
US3730857A (en) * 1970-05-05 1973-05-01 Monsanto Chemicals Production of alkoxides
US5885485A (en) * 1996-06-10 1999-03-23 Bayer Aktiengesellschaft Process for producing low-salt silica sol dispersions in low-boiling alcohols

Also Published As

Publication number Publication date
NL6705143A (en) 1967-10-23
DE1667609C3 (en) 1973-10-04
SE323063B (en) 1970-04-27
DE1667609B2 (en) 1973-02-22
ES339383A1 (en) 1968-05-01
DE1667609A1 (en) 1970-12-03
BE697248A (en) 1967-10-19
NL149766B (en) 1976-06-15

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